Surveying instrument



FIG. 1 is a front perspective view of a surveying instrument, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a left side elevational plan view thereof. 

The ornamental design for a surveying instrument, as shown and described. 